1

Progesterone varies:
Progesterone levels bounce around throughout the day, depending on day of the cycle and pituitary stimulating hormones.
While a Progesterone level of 8 is on the low side, it is usually enough to support a pregnancy, and might well have been higher if retested a few hours later.
We don't find Progesterone levels to be very helpful in planning fertility treatment.
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Progesterone has been found to be helpful in preventing preterm birth in a patient who has a history of delivering babies too early. It can be given as vaginal suppositories. It is most often given as weekly shots until 34-36 weeks.
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3

Fertility meds:
Your progesterone level is very low which is a sign that you didn't ovulate this month. This goes along with having polycystic ovaries. I'm actually surprised that you have regular periods. It's possible that you will need fertility medications (such as Clomid (clomiphene) or Clomiphene) to help you ovulate better to speed up the time to conception. Doctor may need to give you progesterone to menstruate.
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5

Fit for pregnancy:
Other than leading a healthy lifestyle, being normal weight, eating well and taking pre-natal vitamins, you don't have to do anything to prepare for pregnancy. If you regular cycles and are having trouble getting pregnant after trying for 6 months to 1 year, a hysteroslpingogram (x-ray of the uterus and tubes and semen analysis should be done.
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8

Maybe:
It is hard to know whether that dose would suppress ovulation. Chances are it won't but it could still prevent pregnancy through changes in the endometrium and cervical mucous. Differences in absorption of oral Progesterone would account for the uncertainty in suppression. Many ovulate, despite high doses of progesterone. You should resume normal function after discontinuation.
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9

Fertility?:
Progesterone shots do not affect your fertility directly - at all. They can be used to start a period if you are late or skipped, they can be used to 'supplement' luteal Progesterone if a woman has luteal phase defect - which is not a fertility problem. There are no other medically appropriate uses, hope this helps!
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